<p class="shortdesc"></p> <section class="section" id="faqs__section_cgw_ywz_dmb"><h2 class="doc-tairway">Which version of open-source Kafka is the Message Queue Kafka of Ping An Cloud based on?</h2> <p class="p">Message Queue Kafka of Ping An Cloud is based on version V1.1.0.</p> </section> <section class="section" id="faqs__section_ey5_dxz_dmb"><h2 class="doc-tairway">Does Kafka support message compression?</h2> <p class="p">Yes. Message Queue Kafka supports message compression formats such as snappy, lz4, gzip, and producer.</p> </section> <section class="section" id="faqs__section_nkb_jxz_dmb"><h2 class="doc-tairway">How long can Kafka messages be retained, and can I set the retention period?</h2> <p class="p">Messages can be retained for 48 hours. You can set the retention period on a per-topic basis in a later version.</p> </section> <section class="section" id="faqs__section_cb1_nxz_dmb"><h2 class="doc-tairway">Will Kafka lose messages?</h2> <p class="p">The optimized Message Queue Kafka of Ping An Cloud guarantees message integrity at a rate of 99.999%, which is significantly higher than the open-source Kafka.</p> </section> <section class="section" id="faqs__section_v1d_rxz_dmb"><h2 class="doc-tairway">What should I do if a lot of Kafka messages heap up?</h2> <p class="p">There is no impact if Kafka messages heap up within the retention period, and consumers can continue receiving messages. The system clears a message when its retention period expires, and the message cannot be consumed once cleared. If messages heap up, first examine the consumption capability. If the consumption capability is poor, add more consumers. If the number of consumers reaches the upper limit (equal to or greater than the number of partitions), we recommend that you contact the administrator to add more topic partitions.</p> </section>